TY - JOUR T1 - Diversification rates in a temperate legume clade: are there so many species of Astragalus (Fabaceae)? JF - Amer. J. Bot. Y1 - 1996 A1 - M.J. Sanderson A1 - M.F. Wojciechowski SP - 1488 EP - 1502 VL - 83 UR - http://www.botany.wisc.edu/courses/botany_940/03KeyInnovations/papers/Sanderson IS - 11 ER -